C＃Web浏览器与点击亮点 [英] C# Web Browser with click and highlight

问题描述

在我去，并且这个代码，我想我会看看是否有人在这里的任何开源知道（或支付）已建成当量。

Before I go off and code this, I thought I'd see if anyone here knows of any open source (or paid for) equivalents already built.

我在找一个浏览器控件，用户可以预览网页，然后突出它的元素和一次强调，我可以选择的元素的格或ID。

I'm looking for a browser control where users can preview a web page and then highlight elements of it and once highlighted, I can get the div or id of the element selected.

有没有人见过这样的事？

Has anyone seen such a thing?

推荐答案

下面是使用.NET WebBrowser控件粗的版本，它使用IE浏览器。

Here's a crude version using the .NET WebBrowser control, which uses Internet Explorer.

namespace WindowsFormsApplication1
{
    using System;
    using System.Collections.Generic;
    using System.Diagnostics;
    using System.Windows.Forms;

    public partial class Form1 : System.Windows.Forms.Form
    {
        private HtmlDocument document;

        private IDictionary<HtmlElement, string> elementStyles = new Dictionary<HtmlElement, string>();

        public Form1()
        {
            InitializeComponent();
        }

        private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
        {
            this.Text = e.Url.ToString();
            this.document = this.webBrowser1.Document;
            this.document.MouseOver += new HtmlElementEventHandler(document_MouseOver);
            this.document.MouseLeave += new HtmlElementEventHandler(document_MouseLeave);
        }

        private void document_MouseLeave(object sender, HtmlElementEventArgs e)
        {
            HtmlElement element = e.FromElement;
            if (this.elementStyles.ContainsKey(element))
            {
                string style = this.elementStyles[element];
                this.elementStyles.Remove(element);
                element.Style = style;
            }
        }

        private void document_MouseOver(object sender, HtmlElementEventArgs e)
        {
            HtmlElement element = e.ToElement;
            if (!this.elementStyles.ContainsKey(element))
            {
                string style = element.Style;
                this.elementStyles.Add(element, style);
                element.Style = style + "; background-color: #ffc;";
                this.Text = element.Id ?? "(no id)";
            }
        }
    }
}

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